Sterling Double Hungs have a clean, architecturally-correct appearance that blends with the finest decor. Wood covers conceal the jambliners, bringing these windows up to the level of fine furniture. Sterling Double Hungs are outstanding in terms of operation and functionality. The innovative lock has a dual-positioning lever. It is easy to use and allows the sash to be unlocked and tilted in for cleaning. Plus, the lock system boosts unit performance to a level often not reached by double hungs. For product-related questions, please email architects@kolbe-kolbe.com #door #doors #kolbe #kolbe_and_kolbe #millwork #opening #window #windows #windows_and_doors